<!DOCTYPE HTML><html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><title>計時器</title><script type="text/javascript"> ? function clock(){ ? ? ?var time=new Date(); ? ? ? ? ? ? ? ? ? ? ?document.getElementById("clock").value = time; ? }// 每隔100毫秒調用clock函數,并將返回值賦值給i ? ?var i=setInterval("clock()",100);</script></head><body> ?<form> ? ?<input type="text" id="clock" size="50" ?/> ? ?<input type="button" value="Stop" ?onclick="clearInterval(i)"/> ?</form></body></html>請問你寫的這些代碼能取消定時嗎?
取消定時問題
qq_新爺_0
2017-07-27 18:17:49